This calculator is built on peer-reviewed academic research and industry studies examining the relationship between airport processing times, passenger dwell time, and in-terminal retail/F&B revenue. All calculations focus exclusively on departing passengers (arriving passengers don't go through check-in) and revenue from shops, restaurants, and concessions within the terminal (excluding parking, rental cars, and other non-terminal services).

Airport Revenue Share: The calculator shows net revenue to the airport after accounting for the concession fee structure. Airport concessionaires typically pay 15-20% of gross sales as rent to the airport, though this can range from 10-25% depending on location, category, and traffic. The retailer/operator retains the remaining 75-90% to cover their operating costs, staffing, inventory, and profit margins. The calculator defaults to 15% (conservative) but allows adjustment based on your airport's actual concession agreements.